It would be even nicer if the report could then be emailed to someone, such as the contact person of the site in question.

This isn't going to scale for busy web sites. I doubt if the contact person (or the mail system administrator) is going to be happy when he comes in to work one morning and finds a couple of hundred thousand e-mails all saying, "your html is broken!"

Went to join the gridlock to see it
Held an eclipse party
Watched a live feed
I cn"t see tge kwubosd to amswr thus
I tried to see it, but 8000 miles of rock got in the way
What eclipse?
Wanted to see it, but they wouldn't reschedule it
Read the book instead